baber/WOPTO huggingface dataset:
Patent GB-938100-A (GB)
Title: Improvements in or relating to circuit arrangements for calculating the area under acurve
Inventor: ARROWSMITH JOHN RICHARD
IPC: G06G7/182
Filed: 1959-01-22
Abstract: 938,100. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 12, 1960 [Jan. 22, 1959], No. 2344/59. Class 37. Apparatus for computing the area under a curve comprises means for deriving a first group of voltages proportional to the lengths of a group of successive ordinates of the curve, means for applying such voltages respectively and simultaneously to first computing means providing a first output voltage proportional to the sum of a mathematical series whose terms are proportional to the successive voltages of the group, means for deriving voltages proportional to the respective abscissae corresponding to the successive ordinates, which are simultaneously applied to second computing means for deriving a second voltage proportional to the average successive ordinal spacing, and further means responsive to the second voltage for selecting a proportion of the first output voltage such that it is equal to the product of the first and second voltages and to the area beneath the curve. According to Simpson's first rule the area A under a curve is given by where #x is the spacing between successive ordinates y 0 , y 1 , y 2 , y 3  . . . y n . A transformer 1 (Fig. 1), has five primary windings and a single tapped secondary winding on a toroidal core; the former being supplied over terminals 2a, 3a, 4a, 5a, 6a with voltages representing ordinates y 0  to y 4  and the windings being so proportioned that a voltage representing <SP>1</SP>/ 3  (y 0 +4y 1 +2y 2 +4y 3 +y 4 ) appears at the secondary. A transformer 8 has a single primary and secondary on a toroidal core; the former being supplied over resistors 11, 12, 13, 14, 15 with voltages representing the abscissal valves x 0  to x 4  corresponding to the ordinal valves y 0  to y 4  so that the secondary voltage represents #x, the average of the difference between successive abscissal values, as described in Specification 804,905; this voltage being compared in a summation amplifier 17 with a reference voltage from a tapped transformer 19. The amplifier output operates a uniselector 21 varying ganged slides over the secondary taps of transformers 1, 19 until the comparison voltage is zeroized and the uniselector arrested, when the output from the slider of transformer 1 represents the product. and the area under the curve between ordinates y 0  and y 4 . Alternatively a servo system may respond to the comparison of the #x voltage with a reference voltage from a driven linear potentiometer to adjust the tappings of transformer 1; the angular displacement of the, servo system representing #x. The areas of successive sectors under the same curve may be computed by plural devices as described and the respective outputs may be additively combined in a plurality of toroidal transformers with independent primaries and series connected secondaries (Fig. 3, not shown), to a voltage representing the total area. Applications to ship design calculations are described (Figs. 2, 4, 5, not shown).
Patent GB-284246-A (GB)
Title: Water-resisting building material
IPC: E01C7/18
Filed: 1928-01-25
Abstract: 284,246. Laderer, H. Jan. 25, 1927, [Convention date]. Compositions containing bitumen and shale.- A bituminous composition comprises natural bitumen and shale in the form of a fine impalpable powder. The composition can be used for road making and for the manufacture of roofing tiles. building blocks, drain pipes, pillars, &c.
Patent GB-784160-A (GB)
Title: Improved apparatus for dispensing sheet material from a continuous web
Inventor: HOWLETT EDWARD JOHN
IPC: A47K10/28
Filed: 1955-01-27
Abstract: 784,160. Dispensing sheet material. KNOX, G. April 6, 1956 [Jan. 27, 1955], No. 2445/55. Class 18. The pinch roll 2 of a towelling or like dispenser, in addition to bearing on the web delivery roll 1, is also supported by the periphery of one or more elements rotatable with it. In one embodiment the spindle 7 of the roll 2 rests at each end on a peripheral flange of a wheel 4a. In another embodiment, the spindle rests on the outer periphery of similarly positioned wheels. In a further arrangement, the roll 2 rests against a freely rotatable roller beneath it.
Patent GB-979846-A (GB)
Title: Apparatus for cleaning liquids containing solid particles in suspension
IPC: B01D21/26
Filed: 1961-01-20
Abstract: 979,846. Filters for liquids ; stationary centrifugal strainer separators. E. & M. LAMORT FILS. Jan. 20, 1961 [Jan. 22, 1960; July 8, 1960], No. 2479/61. Heading B1D. Liquid, e.g. cellulosic pulp, is introduced tangentially at 8, Figs. 1 and 2, to the space 15 outside a tubular screen 2 so that heavy unwanted solids thrown outwards by centrifugal force collect in a lock chamber 14 which is periodically emptied. Lighter unwanted solids follow the liquid current and are conveyed along a pipe 17, Fig. 4, past an open valve 18, and through a constriction 20 into a chamber 16. Dilution water is continuously introduced at 19 to wash acceptable pulp back into space 15 through a screen 23. After a time valve 18 is closed, and after a further time the lighter solids are discharged to waste through a valve 22, Fig. 1. Meanwhile acceptable pulp is being discharged at 11, Figs. 1 and 2, from within screen 2, which is kept clean by blades 4a which create a backflow in their vicinity, and by blades 4b which create suction. The blades rotate in a direction opposite to that of the suspension outside the screen. Preferably a vibrator 9 is secured to the screen 2 and the screen is resiliently mounted so that the casing 1 will not vibrate with it. The liquid may be de-aerated by connecting a vacuum pump at 25, Fig. 1.
Patent GB-347700-A (GB)
Title: Improvements in or relating to steering wheel drives for motor road vehicles
IPC: B60K17/30
Filed: 1930-01-25
Abstract: 347,700. Detachable wheels. BUDD MANUFACTURING CO., E. G., 25th Street, Philadelphia, U.S.A.-(Assignees of Ledwinka, J. ; 2500, Hunting Park Avenue, Philadelphia, Ragsdale, E. J. W. ; Curren Terrace, Norristown, Pennsylvania, and Muller, W. J. ; 1641, North 12th Street, Philadelphia, both in U.S.A.) Jan. 25, 1930, No. 2660. Convention date, Jan. 25, 1929. [Class 144 (i).] The wheel disc 15 is detachably secured by bolts 14 to a centre disc 11 secured on the end of a driving spindle 10 which rotates in bearings in the swivelling steering knuckle 18. The knuckle, wheel centre, wheel disc, and the brake drum 17 are all outwardly-dished so as to meet together as shown.
Patent GB-445380-A (GB)
Title: Improvements in wire spooling machines
IPC: B65H59/38
Filed: 1935-01-26
Abstract: 445,380. Winding wire. EDWARDS, E., JONES, C., and HANSON, R., Vernon Street Works, Warrington, Lancashire. Jan. 26, 1935, No. 2677. [Class 120 (ii)] A machine for winding or spooling wire comprises a number of bobbins or spools mounted on shafts a, Fig. 1, each rotated through a clutch b from an expanding pulley d driven by a belt e on an expanding pulley f on the driving shaft y, the pulleys being linked by a pair of levers g pivoted to the half-pulleys and fulcrumed on a shaft j and linked to nuts n, m on a shaft o having right and left-hand threads and rotated through change-speed gearing p and clutch 2 from the shaft y so that the speed of the bobboin is reduced as the diameter of the spool being wound increases ; the wheel p of each bobbin unit gears with a wheel on a shaft q<1> which, like the shaft y serves all the units. A starting and stopping handle 5 is associated with the clutches 2, 3, of each bobbin so that the clutches are engaged or disengaged simultaneously. The fulcra h of the levers g are carried by nuts i on right and left-hand threads on the shaft j which has a hand wheel k for adjusting the positions of the fulcra. The handle 5 has a wedge 7 which co-operates with a similar wedge on a brake lever 9 carrying a brake block engaging the driven part of the clutch b so that the rotation of the shaft a is stopped when the clutch is disengaged and the lever 9 is connected to a lever which applies a brake to the supply swift simultaneously with the application of the brake to the driven part of the clutch b.
Patent GB-183108-A (GB)
Title: Improvements in atomisers
IPC: B05B11/06
Filed: 1922-01-30
Abstract: 183,108. Vendome, R., and Marcoux, H. July 13, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Air-pressure sprayers.-An atomizer for perfumes or antiseptic liquids or solutions comprises a reservoir C for the liquid forming a piston on which fits a tubular casing A, the casing and reservoir being both provided with openings closed by valves B, D. A cap F, to which the casing A may be screwed, has a conical seating for a nozzle member G, which is retained in place by a spring H bearing against a nut K and a member I Screwed in the member G is a member L formed square at its lower end to fit a corresponding hole in the cap F and carrying at its upper end a conical part N ending in a needle valve. In operating, the reservoir is charged with liquid, the member G rotated to close the valve N, and the casing A reciprocated to force air into the reservoir C until sufficient pressure is produced, when it is screwed to the cap F. On rotating the member G, the part L will move downwards, opening the valve N and allowing liquid to be forced through the tube R past the screw thread L to the outlet O.
Patent GB-1003231-A (GB)
Title: Improvements in or relating to tunnel diode logical inversion and storage circuits
IPC: H03K17/58
Filed: 1963-01-22
Abstract: 1,003,231. Tunnel diode logic; bi-stable circuits. COMPAGNIE DES MACHINES BULL. Jan. 22, 1963 [Jan. 30, 1962], No. 2788/63. Heading H3T. In a tunnel diode bi-stable circuit comprising two tunnel diodes acting as input and output diodes respectively and having their anodes interconnected through a capacitor and each connected to a separate resistive current source, the input diode is switched from its normal " low-voltage " state to its " highvoltage " state when an input signal is applied to its anode but the output diode is only switched to its " high-voltage " state from its " low-voltage " state when no input signal has been applied to the input diode prior to a test pulse applied simultaneously to the anodes of both diodes. As shown in Fig. 1 if a positive voltage variation, binary " 1 " input, is applied to terminal 13 diode DT1 is switched from its initial " low-voltage state to its " highvoltage " state, Fig. 2 (not shown). The resultant charging current through capacitor 21 and output diode DT2 is insufficient to switch diode DT2 from its " low-voltage " state to its " high-voltage " state, Fig. 3 (not shown). When at the end of the input pulse at 13, a positive test pulse is applied at terminal 23 through resistors 15, 16 to the anodes of the two diodes, the additional current through diode DT1 does not materially alter the potential at 13<SP>1</SP> and the additional current through diode DT2 is insufficient to switch this diode to its " high-voltage " state since its quiescent current is set by resistor 12 to be well below the peak current of its characteristic. The potential at point 14<SP>1</SP> is therefore small and the output at terminal 14 is a binary " 0." A negative pulse on terminal 23 following the test pulse resets both diodes to their " low-voltage state." If there is no input present at terminal 13 i.e. binary " 0 " then at the time of application of a test pulse at terminal 22 both diodes are in their " lowvoltage state." The currents through equal resistors 15, 16 due to the test pulse are equal but since the quiescent current of DT1 is fixed higher than that of diode DT2 near the peak of its characteristic, diode DT1 changes to its " high-voltage " state before diode DT2. A sudden voltage change at 13<SP>1</SP> is prevented by capacitor 21 which sets up a temporary load current. The current through diode DT2 is now sufficient to switch it to its " high-voltage " state. When the test pulse has ended a highvoltage level, binary " 1 " appears on the output terminal 14. A resistor may be connected in series with capacitor 21 between 13<SP>1</SP> and 14. The inverter circuit may be used in a logical stage, Figs. 4, 5 (not shown), which forms part of an information-processing apparatus.
Patent GB-985333-A (GB)
Title: Spray guns and the like
Inventor: JENKINS JOHN HINES
IPC: B29B7/74
Filed: 1962-01-25
Abstract: 985,333. Valves. IMPERIAL CHEMICAL INDUSTRIES Ltd. Jan. 25, 1963 [Jan. 25, 1962], No. 2816/62. Addition to 913,611. Heading F2V. [Also in Division B2] A needle valve C is located in a spray gun with one end B of the valve projecting into the path A-A<SP>1</SP> of a gas such as air and the other end D protruding beyond the casing P of the gun and connected by a pivot pin E to a point between the ends of a lever FJ. The end F of the lever is formed with a slot engaged by a pin G carried by the casing on a bracket G<SP>1</SP>. The other end of the lever is engaged by a spring K which is anchored to the casing and carries an abutment screw L engaging a cam H which is adjustable by means of a handle I to vary the valve setting. The valve head B may be fully raised to allow the passage of the air &c. to clean out the gun chambers.
Patent GB-1281962-A (GB)
Title: Delivering quantities of liquid to be tested to a liquid chromatography column
IPC: G01N30/18
Filed: 1970-01-20
Abstract: 1281962 Sample injectors for liquid chromatography SIEMENS AG 20 Jan 1970 [20 Jan 1969] 2819/70 Heading B1X Samples in containers BH are metered and injected into a stream of carrier liquid flowing in pipe Z to chromatography column T by holding cannula KA in the position shown while piston rod ST is withdrawn so that end 6 thereof lies further to the right than aperture 5. Container BH is then removed from the end of cannula KA, and the end of the cannula capped with plug SF. The entire cannula assembly is then moved to the right until nut M abuts strap L, at which point aperture 5 is situated in duct K. A predetermined stroke of rod ST then injects a metered quantity of sample into the carrier liquid in duct K. If preferred, rod ST may be absent, cannula KA being hollow. After the sample has been injected the cannula KA may be flushed with carrier liquid simply by removing plug SF; when flushing is complete, cannula KA is moved to the left and rod ST (if present) restored to the initial position, when the injector is ready for the next cycle. In a modification, the injector may be used to sample liquid flowing constantly through a chamber (see Fig. 2, not shown).
Patent GB-328669-A (GB)
Title: Apparatus for playing a race game of skill
IPC: A63F9/14
Filed: 1929-01-28
Abstract: 328,669. Sparks, H. W. Jan. 28, 1929. Race games, mechanical.-Runners, in the form of mounted huntsmen or like, are pulled, each by a cord and winding apparatus, over obstacles situated transverselv on a smooth track. Winding of the cord 7, which is parallel to the track, causes the lateral arms 5 on the huntsman 3 to engage with the bent brackets 4, which, pivotally mounted in the obstacles 2<1>, causes the runner to ride over the obstacle. Blocks 6, Fig. 2, provided on the track in front of each obstacle, guide the feet of the runner 3, so that the. arms 5 correctly engage the said bracket 4.
Patent GB-802360-A (GB)
Title: Preparation of flexible elastomeric cellular materials
IPC: C08G18/18
Filed: 1956-01-30
Abstract: A process for preparing flexible cellular products comprises forming a prepolymer by reacting (a) an active-hydrogen-containing polymeric material with (b) from 0.90 to 1.10 mol. of organic diisocyanate per mol. of the polymeric material until the exothermic heat of reaction has been substantially completely evolved, removing or permitting the removal of the generated heat of reaction, adding 1 to 4 per cent by weight (on the prepolymer) of water, an organic polyisocyanate in amount to provide 2 to 6 equivalents of isocyanate per mol. of the polymeric material, N-methylmorpholine and a condensation product of approximately 4 mol. of butyraldehyde and 1 mol. of aniline, thoroughly mixing the complete reaction mixture and expanding and curing the mixture at room or elevated temperature to form the flexible cellular product.  The expression "active - hydrogen - containing polymeric materials" means polyesters, polyesteramides and polyalkylene ether glycols having an average molecular weight of from 750 to 2,250 and, in addition, in the case of polyesters and polyesteramides, an acid number not greater than 5.  Suitable materials are those described in Specifications 694,982, 696,449, 696,450, 731,071 and U.S.A.  Specification 2,692,873.  The preparation of the prepolymer is described in Specification 797,227. The condensation products of butyraldehyde and aniline are described in U.S.A.  Specifications 1,780,326 and 1,780,334. In examples: (1) a prepolymer is prepared by reacting an adipic acid/ethylene glycol/diethylene glycol/butylene glycol polyester and tolylene diisocyanate (mixed 2,4- and 2,6-isomers), and cooled to room temperature.  One portion of prepolymer is mixed with further tolylene diisocyanate, another with water, N-methylmorpholine, an alkylated aryl polyether alcohol and the butyraldehyde/aniline condensation product.  The mixtures are stirred together and react to give a foam which is cured by heating; (2) to (4) to a prepolymer prepared as in Example (1) there are added tolylene diisocyanate, butyraldehyde/aniline condensation product, water and N-methylmorpholine, to give a foam which is cured by heating in a mould; (5) and (6) in a similar process to (2) the polyester employed is a diethylene glycol/adipic acid-suberic acid reaction product.
Patent GB-1182521-A (GB)
Title: Improvements in or relating to Water-Soluble Resins
IPC: C08L61/00
Filed: 1968-01-19
Abstract: 1,182,521. Water soluble resins. VIANOVA KUNSTHARZ A.G. L9 Jan., 1968 [19 Jan., 1967], No. 3101/68. Heading C3B. [Also in Division C7] Water soluble resins are prepared by reacting at elevated temperature, e.g. 60-200 C.: (I) a compound containing more than one but not more than two epoxy groups per molecule with (II) an etherified or non-etherified methylol compound capable of forming a macromolecule at 100-200 C., either alone or with another hydroxy compound by forming ether or methylene linkage. An epoxy-free reaction product is obtained which is further reacted with a polybasic carboxylic acid or anhydride (III) and the resultant product rendered water soluble by neutralization with an inorganic and/or organic nitrogen base. (I) is preferably a diglycidyl ether of bisphenol A (M.W. 400-3000) which contains hydroxyl groups as well as epoxy groups, it may also be an epoxidized novolac resin. (II) may be a phenolic resin or an aminoplast derived from urea, melamine or benzoguanamine. (II) may also be an optionallyetherified methylol compound of a copolymer of (meth)-acrylamide or of a hydroxy containing silicone resin. (III) may be an adduct of an α,#-ethylenically unsaturated dicarboxylic acid or anhydride, e.g. maleic anhydride, with a fatty acid. (III) may also be a styrene/maleic anhydride copolymer having 2-8 anhydride groups per molecule. The process may be carried out in the presence of an alkaline catalyst and/or an inert solvent, e.g. diethylene glycol diethyl ether. In an example (II) is prepared by etherifying with butanol, a condensate of formaldehyde with p-tert-butylphenol. It is reacted with a bisphenol A/epichlorohydrin epoxy resin (epoxy equivalent 450-525) at 100-110 C. until no free epoxy groups are present. The product is then reacted in a solvent with an adduct of maleic anhydride and linseed oil/dehydrated castor oil. A water soluble resin is obtained on neutralization with an aqueous soln. of diethylamine. Coating compositions may contain conventional pigments and are suitable for electrodeposition.
Patent GB-168832-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B1/00
Filed: 1917-03-05
Abstract: 168,832. Bastiou, Y. P. J. Sept. 6, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Spray carburettors.-A compressor driven by the engine or independently thereof forces air through a carburettor to the cylinder. Pressureregulating means may be provided.
Patent GB-535458-A (GB)
Title: Improvements in or relating to lettercards
IPC: B42D15/08
Filed: 1940-02-21
Abstract: 535,458. Lettercards. SKEINS, D. M., and DICKENSON & CO., Ltd., J. Feb. 21, 1940, Nos. 3233 and 5165. [Class 146 (ii)] A lettercard a has self-adhesive, such as rubber latex, on the perforated margins b which are protected by a sheet of paper c adapted to be removed wholly or in part on sealing. The sheet c may be removed and folded for insertion as a loose sheet, or the edges e are perforated for removal. The sheet c may be loose, or secured at one end d or near the fold of the lettercard. In a modification, Fig. 3, the sheet c is attached to an outer edge of the card.
Patent GB-1371784-A (GB)
Title: Noise suppressor for jet engines
IPC: F02K1/42
Filed: 1971-01-26
Abstract: 1371784 Jet propulsion nozzles DEFENCE SECRETARY OF STATE FOR 29 Nov 1971 [30 Nov 1970 26 Jan 1971] 56887/70 and 3234/71 Heading F1J To reduce noise in a selected directional plane a jet propulsion nozzle comprises an angularly adjustable duct portion 214A with two opposed recesses 216 which surrounds and is supported by a fixed duct portion 214B. The latter has extensions 231 which close off recesses 216 when portion 214A is angularly moved to the non-silencing position. The portion 214A can be moved to positions in which recesses 216 cause the propulsive gases to spread in a vertical or horizantal plane to thus effect silencing in the selected plane. The movement is produced by a pneumatic motor 241 driving a pinion 240 meshing with racks 238, 239 connected to flexible cable 236 running over pulleys 237 and wrapped around the convergent part 230 of portion 214A.
Patent GB-615546-A (GB)
Title: Space heating plant
IPC: F28D1/02
Filed: 1946-02-01
Abstract: 615,546. Heating system for buildings. BORGHESAN, H. Feb. 1, 1946, No. 3253. Convention date, Jan. 5, 1945. [Class 64(ii)] [Also in Group X] A space heating plant for rooms comprises in combination with floor heating panels P and a heating supply system 13 a transportable unit, comprising a casing 1 having lower air inlets and upper air outlets 7, a heat exchanger 10, an air heater 5, a fan 2 and fluid circulating pump 8, connections 9, 11 being provided for detachably connecting the pump and heat exchanger in series with the floor panels which connections together with clutches on the fan and pump enable the transportable unit and floor panels to be used together or independently and with control of the heating effect.
Patent GB-549788-A (GB)
Title: Improvements in tubular elements having a base, end cap or like fitting
IPC: F42B30/08
Filed: 1942-03-12
Abstract: 549,788. Making bombs or shells. SANDVIKENS JERNVERKS AKTIEBOLAG. March 12, 1942, No. 3275. Convention date, Feb. 28, 1941. [Classes 83 (ii) and 83 (iv)] Welding.-A tubular element such as a shell or bomb casing has a base member resistance welded thereto provided with a centering projection and with an annular groove into which metal melted during welding flows so as to anchor the parts together also mechanically. The base 14 may have a cylindrical centering projection 20 at each end, with a central flange 16 of diameter equal to or greater than that of the bomb body 10 carrying the bursting charge or of the vaned.shaft element 12 carrying the propulsion cartridge with conical welding portions 18 and with grooves 22 into which the metal of the parts 10, 12 flows when the parts are pressed together during resistance welding. The parts first contact with the base at the sharp edges 24 where the current is concentrated so that the pressure causes the metal to flow into the grooves. The ends of the parts are welded to the surfaces 18. Due to the increased sectional area through which the current passes at the central flange this flange defines the final position of the parts. A base 32 may be similarly welded in a shell case 30, Fig. 4. The base may carry the elements such as a shaft.